DiskWave is a free disk usage utility for Mac OS X. It helps you determine what files and folders consume most of your disk space.

The program scans your hard drive to compute the size of all folders and sub folders. The results are stored in memory, which allows faster navigation than the built-in “compute all sizes” option in the Finder. You can easily identify useless directories and delete them.

DiskWave for Mac is currently under development. Some features are still missing, but the program is already usable.